package com.jqq.spring.diy;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

/**
 * @author 姬倩倩
 * @date 2023-05-18
 * 用注解方式实现AOP
 */
@Aspect//标注这个类是个切面
public class AnnotationPointCut {
    @Before("execution(* com.jqq.spring.service.impl.UserServiceImpl.* (..))")
    public void before(){
        System.out.println("====方法执行前====");
    }
    @AfterReturning("execution(* com.jqq.spring.service.impl.UserServiceImpl.* (..))")
    public void after(){
        System.out.println("====方法执行后====");
    }
    //在环绕增强中，可以给定一个参数，代表获取处理的切入点
    @Around("execution(* com.jqq.spring.service.impl.UserServiceImpl.* (..))")
    public void around(ProceedingJoinPoint joinPoint) throws Throwable {
        System.out.println("环绕前");
        Signature signature = joinPoint.getSignature();
        System.out.println("signature:"+signature);
        //执行方法
        joinPoint.proceed();
        System.out.println("环绕后");
    }
}
